LCOV - code coverage report
Current view: top level - nntrainer/layers - split_layer.h (source / functions) Coverage Total Hit
Test: coverage_filtered.info Lines: 100.0 % 10 10
Test Date: 2025-12-14 20:38:17 Functions: 83.3 % 6 5

            Line data    Source code
       1              : // SPDX-License-Identifier: Apache-2.0
       2              : /**
       3              :  * Copyright (C) 2021 Parichay Kapoor <pk.kapoor@samsung.com>
       4              :  *
       5              :  * @file   split_layer.h
       6              :  * @date   21 May 2021
       7              :  * @see    https://github.com/nnstreamer/nntrainer
       8              :  * @author Parichay Kapoor <pk.kapoor@samsung.com>
       9              :  * @bug    No known bugs except for NYI items
      10              :  * @brief  This is Split Layer Class for Neural Network
      11              :  *
      12              :  * @todo   Add support for uneven splits. For now, this can
      13              :  * be acheived with combination of split and concat layers.
      14              :  */
      15              : 
      16              : #ifndef __SPLIT_LAYER_H__
      17              : #define __SPLIT_LAYER_H__
      18              : #ifdef __cplusplus
      19              : 
      20              : #include <common_properties.h>
      21              : #include <layer_devel.h>
      22              : #include <tensor_dim.h>
      23              : 
      24              : namespace nntrainer {
      25              : 
      26              : /**
      27              :  * @class   Split Layer
      28              :  * @brief   Split Layer
      29              :  */
      30              : class SplitLayer : public Layer {
      31              : public:
      32              :   /**
      33              :    * @brief     Constructor of Split Layer
      34              :    */
      35              :   SplitLayer();
      36              : 
      37              :   /**
      38              :    * @brief     Destructor of Split Layer
      39              :    */
      40           74 :   ~SplitLayer() = default;
      41              : 
      42              :   /**
      43              :    *  @brief  Move constructor of SplitLayer.
      44              :    *  @param[in] SplitLayer &&
      45              :    */
      46              :   SplitLayer(SplitLayer &&rhs) noexcept = default;
      47              : 
      48              :   /**
      49              :    * @brief  Move assignment operator.
      50              :    * @parma[in] rhs SplitLayer to be moved.
      51              :    */
      52              :   SplitLayer &operator=(SplitLayer &&rhs) = default;
      53              : 
      54              :   /**
      55              :    * @copydoc Layer::finalize(InitLayerContext &context)
      56              :    */
      57              :   void finalize(InitLayerContext &context) override;
      58              : 
      59              :   /**
      60              :    * @copydoc Layer::forwarding(RunLayerContext &context, bool training)
      61              :    */
      62              :   void forwarding(RunLayerContext &context, bool training) override;
      63              : 
      64              :   /**
      65              :    * @copydoc Layer::calcDerivative(RunLayerContext &context)
      66              :    */
      67              :   void calcDerivative(RunLayerContext &context) override;
      68              : 
      69              :   /**
      70              :    * @copydoc bool supportBackwarding() const
      71              :    */
      72           82 :   bool supportBackwarding() const override { return true; };
      73              : 
      74              :   /**
      75              :    * @copydoc Layer::exportTo(Exporter &exporter, ml::train::ExportMethods
      76              :    * method)
      77              :    */
      78              :   void exportTo(Exporter &exporter,
      79              :                 const ml::train::ExportMethods &method) const override;
      80              : 
      81              :   /**
      82              :    * @copydoc Layer::setProperty(const std::vector<std::string> &values)
      83              :    */
      84              :   void setProperty(const std::vector<std::string> &values) override;
      85              : 
      86              :   /**
      87              :    * @copydoc Layer::getType()
      88              :    */
      89          818 :   const std::string getType() const override { return SplitLayer::type; };
      90              : 
      91              :   static constexpr const char *type = "split";
      92              : 
      93              :   /**
      94              :    * @copydoc Layer::setBatch(RunLayerContext &context, unsigned int batch)
      95              :    */
      96           33 :   void setBatch(RunLayerContext &context, unsigned int batch) override {
      97           33 :     setBatch(batch);
      98           33 :   }
      99              : 
     100              : private:
     101              :   unsigned int leading_helper_dim; /**< batch dimension of helper dimension not
     102              :                                 containing the actual batch */
     103              :   TensorDim input_reshape_helper;  /** helper dimension to reshape input */
     104              :   TensorDim output_reshape_helper; /** helper dimension to reshape outputs */
     105              :   std::tuple<props::SplitDimension, props::SplitNumber> split_props;
     106              : 
     107              :   /**
     108              :    * @brief set batch for the internal variables
     109              :    *
     110              :    * @param batch update batch size
     111              :    */
     112           70 :   void setBatch(unsigned int batch) {
     113           70 :     input_reshape_helper.batch(batch * leading_helper_dim);
     114           70 :     output_reshape_helper.batch(batch * leading_helper_dim);
     115           70 :   }
     116              : };
     117              : 
     118              : } // namespace nntrainer
     119              : 
     120              : #endif /* __cplusplus */
     121              : #endif /* __SPLIT_LAYER_H__ */
        

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